LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Transfer Case - BW 4474) >> Diagnostic Information and Procedures >> DTC C0399: Transfer Case Clutch Control >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

M71 Transfer Case Clutch Coil

  1. Ignition OFF, disconnect the harness connector at the M71 Transfer Case Clutch Coil.
  2. NOTE:

    Testing for step 2 is performed on the M71 Transfer Case Clutch Coil using the PU probe J 35616-5.

  3. Test for 2.5-3.5 Ω between the control circuit, terminal A, and the low reference circuit, terminal B.
    • If between 2.5-3.5 Ω 
  4. M71 Transfer Case Clutch Coil OK.